WO2011122409A1 - Eyeglass-type image display device - Google Patents

Abstract

Disclosed is an eyeglass-type image display device which improves on the wearability of a first frame by rotatably attaching, to a pair of temple parts, a second frame that supports a circuit module which houses a power supply circuit unit that supplies power to an image display unit. A first frame (10) includes a front main body (20) and temple parts (40A, 40B). An image display unit (100) houses an optical assembly that generates image light, and the image display unit (100) is attached to the first frame. A second frame (200) is attached to both temple parts rotatably about a rotating shaft (246) that extends in a direction along the left-right direction that the front main body extends in. A module case (210) houses batteries (BT1, BT2) and a power supply circuit unit (212), and is supported by the second frame. Conductors (245P, 245N), or other connection means, connect the power supply circuit unit and the image display unit.

Description

Glasses-type image display device

The present invention relates to a spectacles type in which an image display unit is attached to a frame having a front part located in front of a user's eyes and a temple part connected to a side end of the front part and attached to a user's ear. More particularly, the present invention relates to an eyeglass-type image display device in which a power supply unit that supplies power to the image display unit is mounted on a frame.

In recent years, various head mounted displays have been commercialized as portable image display devices for game machines and portable information terminal devices. An example of a glasses-type image display device is disclosed in Patent Document 1 as a kind of head-mounted display. In the image display device disclosed in Patent Document 1, devices such as a microphone, a speaker, a camera, and a display are built in or attached to a spectacle frame. The plug-in module incorporates a plurality of batteries and a plurality of electronic circuits in order to operate these devices. The plug-in module is connected to the rear ends of the left and right temples of the spectacle frame by a strap. The plug-in module is arranged to be located behind the user's head. If the plug-in module is too large, the strap can be extended and the user can place the plug-in module in the pocket.

JP-T-2001-522063

However, in the eyeglass-type image display device disclosed in Patent Document 1, the plug-in module is fixedly connected to a specific position at the rear end of the temple of the eyeglass frame. For this reason, when the plug-in module is small and light, the user can place the plug-in module in a limited fixed position behind the head so that the plug-in module can be connected to the rear end of the temple of the spectacle frame. It is necessary to wear the spectacle frame while holding the plug-in module. Even if the plug-in module is small and light, the user wears the spectacle frame while paying attention to the position of the plug-in module, and thus there is a problem in the spectacle frame mountability. Further, when the plug-in module is small and light, the battery built in the plug-in module has a relatively small capacity, and the operation time of the image display device is limited to a relatively short time.

On the other hand, when the battery built in the plug-in module has a relatively large capacity, the plug-in module becomes large and heavy. When the user continues to hold the heavy plug-in module behind the head, the weight of the plug-in module causes the spectacle frame to be pulled backward, and a part of the user's face in contact with the spectacle frame is pressed. Therefore, the user may not be able to endure wearing for a long time. In order to avoid the problem when the plug-in module is large and heavy, it is conceivable for the user to extend the strap and place the plug-in module in the pocket. However, if the strap is extended for a long time, the strap will extend downward from the rear end of the temple of the spectacle frame, and when the user moves or works while wearing the spectacle frame, the length of the strap increases. The extended strap may interfere with the user's movement or work.

In view of this, the present invention provides a first frame mounting method by rotatably mounting a second frame supporting a circuit module containing a power supply circuit unit for supplying power to an image display unit to a pair of temple units. An object of the present invention is to provide an eyeglass-type image display device capable of improving the performance.

In order to achieve the above object, in the image display device of the present invention, a front portion that extends in the left-right direction in front of the user's eyes and is attached to the user's nose, and attached to both left and right ends of the front portion are used. A first frame including a pair of temple portions extending rearward from the left and right side ends of the front portion so as to be worn on a person's ear, and an optical system for generating image light for displaying an image to the user A built-in image display unit that is attached to the first frame, and is rotatable about a rotation axis that extends in a direction along the left-right direction in which the front portion extends when a user wears the first frame. Includes a second frame attached to the pair of temple portions and a power supply circuit unit for supplying power to the image display unit, and is supported by the second frame. It comprises a Le, and a connecting means for electrically connecting the image display unit and the circuit module.
In this way, since the second frame is configured to be pivotably attached to the pair of temple portions, the user can place the second frame in a position where there is no hindrance when the first frame is mounted. The frame can be rotated, and the mounting operation of the first frame can be easily performed. Even when the first frame is being worn, the user can change the rotational position of the second frame so that the gravity of the circuit module in the body part such as the head, face, and ears can be reduced. The part which acts mainly can be changed, and the feeling of fatigue due to long-time wearing of the first frame can be relieved.

In the image display device, even if the pair of temple portions are fixedly attached to the left and right side ends of the front portion, they are attached to the left and right side ends of the front portion so as to be rotatable around an axis extending in the vertical direction. If the rotation axis of the second frame exists on the pair of temple parts, the front part is more effective than the part of the pair of temple parts attached to the ears of the user. You may arrange | position in the position near the right-and-left both ends of a part.

Further, the image display unit may be fixedly attached to the first frame or may be attached to the first frame in a detachable manner. As a part of the first frame to be detachably attached, for example, a front part of the frame or each temple part is conceivable, and the front part has a front body and a yoloi part fixed to the front body. As a part of the first frame, an armored portion may be used.

In addition, if the power supply circuit unit is configured to supply power to the image display unit, even if it has a power storage function that stores power, it does not have a power storage function but has a power generation function. There may be.

The image display unit may be of any type as long as it displays an image to the user. For example, a retinal scanning display that projects image light on the user's retina, or a liquid crystal display. It may be a liquid crystal display having a screen. The optical system for generating the image light includes a lens and a mirror for generating the image light from the image display unit, and a type having a light source also includes a light source from an external device via an optical fiber. This includes the type that transmits light.

In addition to the power supply circuit unit, the circuit module may be configured to include a control circuit unit for controlling the image display unit. A configuration including a power supply line for supplying power and a signal supply line for supplying a display control signal is conceivable.

According to a specific aspect of the image display device, the second frame is rotated forwardly of the head of the user wearing the first frame and the user's head. It may be configured to be attached to the pair of temple portions so as to be rotatable between a rearward rotational position rotated rearward of the head.
Thus, since the second frame can be rotated between the front rotation position and the rear rotation position, a relatively large rotation angle range can be obtained. The frame mounting operation can be performed more easily.

In a specific aspect of the image display device, the rotation axis of the second frame is positioned close to a portion of the pair of temple portions that is worn on the user's ear. There may be.
As described above, since the rotation axis of the second frame is located close to the portion of the pair of temple portions attached to the user's ear, the movable portion in the vicinity of the rotation axis of the second frame. Does not interfere with the image display unit or obstruct the user's left and right visual field.

Further, in a specific aspect of the image display device, the power supply circuit unit is configured to be connectable to a battery that stores power supplied to the image display unit, and the circuit module stores the battery in a replaceable manner. A room may be provided.
As described above, since the circuit module includes the storage chamber in which the battery is replaceably stored, the user can use the image display unit continuously for a relatively long time by replacing the battery. Further, when replacing the battery, the user can easily remove and attach the first frame by rotating the second frame.

In a specific aspect of the image display device, the circuit module may include a module case supported by the second frame and a cover attached to the module case in a replaceable manner.
As described above, since the cover is attached to the module case in an exchangeable manner, the user can attach the cover and the module case to the head as a headband by preparing a plurality of types of covers having different colors, shapes, and decorations. I can enjoy it.

According to a specific aspect of the image display device, the second frame includes a support portion that supports left and right ends of the circuit module, and a rotation attachment portion that is rotatably attached to the pair of temple portions. It may be telescopic.
In this way, since the second frame is configured to be extendable and retractable, the user can wear the second frame in accordance with his / her head.

Further, in a specific aspect of the image display device, the second frame is provided between the second frame and the pair of temple portions so that the second frame is detachably attached to the pair of temple portions. A connection mechanism may be provided.
As described above, since the second frame is detachably attached to the pair of temple portions, the user can store the image display apparatus in a relatively small space with the second frame removed. In addition, the maintenance and inspection of the circuit module is facilitated by removing the second frame.

Further, in a specific aspect of the image display device, the power supply circuit unit includes a switch that supplies power to the image display unit or performs an opening / closing operation to cut off the supply, and the switch includes the pair of switches. The opening / closing operation may be performed according to the rotation angle of the second frame with respect to the temple portion.
Thus, by providing the switch for supplying power to the image display unit and shutting off the power from the power supply circuit unit according to the rotation angle of the second frame, the user can keep wearing the first frame. Thus, it is possible to easily supply and cut off the power only by rotating the second frame. Further, it is not necessary to provide a special power switch in a part of the image display device such as the first frame.

In a specific aspect of the image display device, the circuit module may include a photoelectric conversion panel that converts irradiated light into electric power, and a power storage unit that stores electric power generated by the photoelectric conversion panel. .
Thus, since the circuit module includes the photoelectric conversion panel, the user can operate the image display unit for a relatively long time without worrying about the remaining amount of power of the battery.

It is a perspective view which shows the state with which the 1st flame | frame 10 of the image display apparatus 1 which concerns on the 1st Embodiment of this invention was mounted | worn on a user's head. It is a perspective view which shows the whole structure of the said image display apparatus. FIG. 5 is a plan view of the overall configuration of the first frame 10 to which the image display unit 100 is attached, with the connecting band portions 240A and 240B of the second frame 200 broken. 4 is an enlarged perspective view showing a module case 210 and a cover 220 of the second frame 200. FIG. It is an enlarged perspective view showing arm part 230A and connecting band part 240A in a state where arm part 230A of second frame 200 is partially broken. FIG. 4 is an enlarged cross-sectional view showing each member disassembled by cutting the temple body 42A, the connecting band portion 240A, the leaf spring 251 and the fixed body 252 according to the line AA shown in FIG. FIG. 7 is a side view showing a left side surface of a connecting band portion 240A in a state in which a rotation shaft 246 is cut along a line BB shown in FIG. FIG. 7 is a cross-sectional view showing a fixed body 252 cut along line CC shown in FIG. 6. FIG. 2 is a perspective view showing an overall configuration of the image display device 1 in a state where a second frame 200 is located at a forward rotation position. It is a perspective view which shows the state with which the 1st flame | frame 10 was mounted | worn by the user's head in the state in which the 2nd flame | frame 200 is located in the front rotation position. FIG. 2 is a perspective view showing an overall configuration of the image display device 1 in a state where a second frame 200 is located at a backward rotation position. It is drawing which looked at the lower end part of connecting band part 240A-1 in the 2nd embodiment of the present invention from the front. FIG. 13 is a partial cross-sectional view showing the connecting band part 240A-1 cut along the line DD shown in FIG. It is the side view which looked at the temple main body 42A-1 in 2nd Embodiment from the right side. FIG. 15 is a cross-sectional view showing the temple body 42A-1 cut along the line EE shown in FIG. FIG. 6 is a perspective view showing an overall configuration of an image display apparatus 1 of a modification of the present embodiment in which a photoelectric conversion panel 400 is provided on the outer periphery of a module case 210-1.

[First embodiment]
Hereinafter, a first embodiment in which an eyeglass-type image display device of the present invention is applied to a monocular type retinal scanning display will be described with reference to the accompanying drawings. In general, a retinal scanning display includes a light beam generation device that generates image light such as laser light of three primary colors according to an image signal, and a scanning device that includes a galvanometer mirror to project the image light onto the retina. The configuration and operation thereof are known from Japanese Patent Application Laid-Open No. 2006-276633. For this reason, in this embodiment, the detailed description about the internal structure of a retinal scanning display is abbreviate | omitted.

<Overall appearance configuration>
An overall appearance configuration of the retinal scanning display 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 shows a state in which a spectacle-type first frame 10 is attached to a user, and FIG. 2 shows a state in which the first frame 10 is removed from the user. The retinal scanning display 1 has a spectacle-shaped first frame 10, a holding mechanism 50, an image display unit 100 held on the first frame 10 by the holding mechanism 50, and can be rotated on the first frame 10. And a second frame 200 attached to the frame. In addition, in this specification and drawing, an up-down direction, the front-back direction, and the left-right direction point out the direction shown by the arrow in FIG. 1 on the basis of the user shown in FIG.

<Frame configuration>
A detailed configuration of the spectacle-type first frame 10 will be described mainly with reference to FIGS. FIG. 3 is a plan view of the first frame 10 and the second frame 200 to which the image display unit 100 is attached as viewed from above. In FIG. 3, the first frame 10 includes a front body 20, a pair of left and right armor portions 30 </ b> A and 30 </ b> B, and a pair of left and right temple portions 40 </ b> A and 40 </ b> B. The first frame 10 and the second frame 200 of the present embodiment are examples of the first frame and the second frame of the present invention. The front main body 20 and the armored portions 30A and 30B of the present embodiment are examples of the front portion of the present invention. The temple portions 40A and 40B of the present embodiment are an example of a pair of temple portions of the present invention, and the image display unit 100 of the present embodiment is an example of the image display unit of the present invention.

(Front body configuration)
The front body 20 is formed to extend in the left-right direction of the user when the first frame 10 shown in FIG. 1 is mounted. As shown in FIG. 3, the pair of nose attachment portions 21 </ b> A and 21 </ b> B is fixed to the central portion of the front main body 20 and attached on the user's nose when the first frame 10 is attached. The protective cover 22 is fixed to the lower part of the front body 20 and is disposed so as to cover the left and right eyes of the user when the first frame 10 shown in FIG. 1 is attached. The protective cover 22 is formed from a transparent resin film, and prevents a part of the image display unit 100 from touching the user's eyes.

(Configuration of armored part)
As shown in FIG. 3, a pair of left and right armored portions 30 </ b> A and 30 </ b> B are fixed to the left and right side ends of the front body 20 and extend rearward so as to open in the left-right direction. Both armor portions 30 </ b> A and 30 </ b> B are formed integrally with the front body 20. The pair of left and right temple portions 40A and 40B are rotatably attached to the rear ends of both armor portions 30A and 30B by mounting screws 41A and 41B extending in the vertical direction. That is, both the temple portions 40A and 40B are rotatable around an axis extending in the vertical direction of the mounting screws 41A and 41B. As shown in FIG. 3, the front portions 31A and 31B of both armor portions 30A and 30B are formed to protrude outward.

(Structure of temple part)
Both temple portions 40A and 40B have temple main bodies 42A and 42B, ear mounting portions 43A and 43B, and auxiliary guide bodies 44A and 44B, respectively. The temple main bodies 42A and 42B are provided with attachment portions 45A and 45B in order to be rotatably attached to the rear ends of the end pieces 30A and 30B. The auxiliary guide bodies 44A and 44B connect the temple bodies 42A and 42B and the ear mounting portions 43A and 43B. Since both armor portions 30A and 30B and both temple portions 40A and 40B have the same configuration, only the armor portion 30B and the temple portion 40B positioned on the right side will be described with reference to FIGS.

The temple main body 42B is pivotally attached to the rear end of the end piece 30B by an attachment screw 41B and extends in the front-rear direction. As shown in FIG. 2, the auxiliary guide body 44B is connected to the rear end portion of the temple body 42B, and extends forward along the temple body 42B below the temple body 42B. The auxiliary guide body 44B is arranged at a predetermined interval from the temple body 42B. As shown in FIG. 3, the front portion of the auxiliary guide body 44B is curved toward the inside of the first frame 20, and the tip of the front portion is bent outward. The ear mounting portion 43B is fixed to a bent portion at the tip of the auxiliary guide body 44B, curves inward of the first frame 20, and extends rearward. As shown in FIG. 2, the ear mounting portion 43B is arranged to be positioned below the temple body 42B. When the user wears the first frame 10 of the present embodiment in a state where the user always wears glasses for adjusting visual acuity due to the configuration in which the ear wearing portion 43B is positioned below the temple main body 42B. Since the front main body 20 and the temple main body 42B of the first frame 10 are located above the front main body and temple portion of the glasses already worn by the user, they interfere with the front main body and temple portion of the glasses. The user can wear the first frame 10 without any trouble.

A configuration for attaching the armor portion 30B and the temple portion 40B will be described with reference to FIG. The attachment portion 45B is formed to protrude from the left side surface of the temple body 42B, and has an insertion hole through which the attachment screw 41B is inserted. The armor portion 30B has a rear end portion that sandwiches the attachment portion 45B in the vertical direction. The rear end portion has an insertion hole through which the attachment screw 41B is inserted. The temple portion 40A is attached to the armor portion 30B so as to be rotatable about the axis of the attachment screw 41A.

<Configuration of holding mechanism and extension member>
A holding mechanism 50 is provided to hold the mounted state of the image display unit 100 mounted on the temple portion on the side desired by the user among the pair of left and right temple portions 40A and 40B. The holding mechanism 50 is mainly composed of a fixture 60 attached to the image display unit 100.

(Configuration of extension member)
A pair of left and right extending members 51A and 51B are provided on the temple portions 40A and 40B. Since both the extending members 51A and 51B have the same configuration, only the extending member 51A will be described. As shown in FIG. 3, the extending member 51A extends forward from the arrangement position of the attachment portion 45A of the temple body 42A, and is formed integrally with the temple body 42A.

(Configuration of fixture)
The configuration of the fixture 60 will be briefly described. The fixture 60 has a fixture body 61. The fixture main body 61 has a mounting hole portion penetrating in the front-rear direction in the upper portion, and has a mounting groove extending in the vertical direction in the lower portion. The attachment hole portion is formed so that the front end portion of the extending member 51A can be fitted, and the attachment groove is formed so that the vertical sliding body attached to the image display unit 100 can be fitted. In the present embodiment, the configuration of the fixture 60 allows the image display unit 100 to adjust the position in the vertical direction and the position in the horizontal direction with respect to the left extending member 51A. The rotation position can be changed around the rotation axis.

<Configuration of image display unit and control device>
The image display unit 100 includes a control device that generates image light and an optical system that guides the generated image light to the eyes of the user. The control device includes a video signal supply circuit for three primary colors, a laser light source, a laser drive circuit, a coupling optical system for laser light of three primary colors, and the like. The optical system built in the image display unit 100 includes a collimating lens, a horizontal scanning unit, a vertical scanning unit, an eyepiece lens, and the like. As shown in FIG. 3, in the image display unit 100, a transparent half mirror 101 is attached in the vicinity of the light irradiation opening so that the angle can be adjusted. An optical system such as a collimating lens, a horizontal scanning unit, a vertical scanning unit, and an eyepiece lens built in the image display unit 100 of this embodiment is an example of an optical system built in the image display unit of the present invention. Is an example of image light generated by the optical system of the present invention.

The image display unit 100 irradiates laser light to the half mirror 101 via a built-in optical system, and the laser light refracted by the half mirror 101 is irradiated to the user's eyes. The user can see the background in front of the eyes through the half mirror 101 when the laser beam is not irradiated on the eyes.

<Configuration of second frame>
The second frame 200 will be described with reference to FIGS. 2 and 4 to 8. As shown in FIG. 2, the second frame 200 is connected to the module case 210, the cover 220, a pair of arm portions 230 </ b> A and 230 </ b> B fixed to the left and right end portions of the module case 210, and both arm portions. And a pair of connecting band portions 240A and 240B. The lower end portions of both connection band portions 240A and 240B are rotatably connected to the rear end portions of both temple bodies 42A and 42B of the first frame 10.

(Configuration of module case and cover)
In FIG. 4, the module case 210 has a storage chamber 211 that is made of synthetic resin and stores replaceable batteries BT1 and BT2. The batteries BT1 and BT2 are power supplies for supplying an operating voltage for operating the image display unit 100. The module case 210 includes a power supply circuit unit 212. The power supply circuit unit 212 includes electrical contacts connectable to the plus terminals and the minus terminals of the batteries BT1 and BT2, and a circuit board on which the electrical contacts are arranged. The module case 210 has a pair of openings 213A and 213B above the left and right sides. In the present embodiment, the power supply circuit unit 212 has a circuit configuration in which both batteries BT1 and BT2 are connected in series.

In FIG. 4, the cover 220 is formed of synthetic resin and provided to cover the storage chamber 211. The cover 220 has a pair of elastic locking claws below the left and right sides. In FIG. 4, only the left elastic locking claw 221A is shown. The pair of elastic locking claws are fitted into the pair of openings 213 </ b> A and 213 </ b> B of the module case 210 and engage with the inner wall of the module case 210. The elastic locking claw 221A is fitted into the opening 213A.

In the present embodiment, the upper surface 222 of the cover 220 is a surface on which a decorative pattern is drawn. The user can select a favorite cover from a plurality of types of covers on which different decorative patterns are drawn, and replace it with the cover 220.

The combination of the module case 210, the cover 220, and the power supply circuit unit 212 of the present embodiment is an example of the circuit module of the present invention, and the power supply circuit unit 212 of the present embodiment is an example of the power supply circuit unit of the present invention. The module case 210, the cover 220, and the storage chamber 211 of this embodiment are examples of the module case, the cover, and the storage chamber of the present invention.

(Configuration of arm and connecting band)
The arm part 230A and the connecting band part 240A disposed on the left side include voltage supply elements such as supply lead wires, electrical contacts, and switches for supplying the operation voltage from the pair of batteries BT1 and BT2 to the image display unit 100. . Except for the configuration including this voltage supply element, the basic configurations of the left and right arm portions and the connecting band portion are substantially the same, so the left arm portion 230A and the connecting band portion 240A are mainly described with reference to FIG. explain. FIG. 5 shows a member provided inside the arm portion 230A by breaking a part thereof.

The arm portion 230A is formed of synthetic resin, and extends downwardly from the left end portion of the module case 210. The arm portion 230 </ b> A is fixed to the left end portion of the module case 210. As shown in FIG. 5, the arm portion 230A is formed in a hollow shape. The inner wall 231 of the arm portion 230 </ b> A forms an internal space, and the internal space communicates with the storage space of the storage chamber 211 of the module case 210. A pair of electrical contacts 232P and 232N are fixed to two inner wall portions facing forward and backward in the inner wall 231 of the arm portion 230A. Both electrical contacts 232P and 232N have curved protruding portions 233P and 233N on surfaces facing each other. Both electrical contacts 232P and 232N are connected to a pair of lead wires 234P and 234N wired in the internal space of the arm portion 230A. The lead wire 234P connects the plus terminal of the battery BT1 of both the batteries BT1 and BT2 connected in series and the electrical contact 232P. The lead wire 234N connects the electrical contact 232N and the negative terminal of the battery BT2. A guide pin 235 protrudes in the internal space of the lower end portion of the arm portion 230A.

The connecting band 240A is telescopically connected to the arm 230A at its upper end and is rotatably connected to the temple body 42A at its lower end. The connecting band portion 240A has a long groove 241 extending in the vertical direction in FIG. The guide pin 235 is fitted in the long groove 241 and guides the relative movement in the vertical direction between the arm portion 230A and the connecting band portion 240A. That is, the guide pin 235 fitted in the long groove 241 guides the movement of the arm part 230A and the connecting band part 240A to expand and contract.

The connecting band part 240A has a pair of movable connecting pieces 242P and 242N at the upper end part thereof. Both movable connecting pieces 242P and 242N are made of a conductive material. The movable connecting piece 242P has a wave-shaped edge 243P that contacts the protrusion 233P of the electrical contact 232P. The movable connecting piece 242N has a wave-shaped end portion 243N that comes into contact with the protruding portion 233N of the electrical contact 232N. The electrical contacts 232P and 232N are formed of a conductive elastic material, and can hold the contact position with the wave-shaped end edges 243P and 243N by its own elastic force. Both end edges 243P and 243N have a plurality of curved recesses for setting at an arbitrary position among a plurality of different contact positions.

The connecting band portion 240A has a band main body 244 in a region below the movable connecting pieces 242P and 242N. The band body 244 is formed from a non-conductive material such as a synthetic resin. A pair of conductors 245P and 245N extends in the vertical direction and is embedded in the band main body 244. Both conductors 245P and 245N are connected to both movable connecting pieces 242P and 242N, respectively.

(Connection between temple body and connecting band)
The structure which connects the temple main body 42A and the connection band part 240A so that rotation is possible is demonstrated with reference to FIG. 6 thru | or FIG. 6 is a sectional view taken along line AA shown in FIG. 3 and disassembling each member.

Rotating shaft 246 is fixed to the left side surface of temple body 42A and protrudes in the horizontal direction from the left side surface. Two locking protrusions 247 and 248 are formed to protrude from the left side surface of the temple body 42A. Both locking protrusions 247 and 248 are provided at positions symmetrical in the vertical direction with respect to the rotation shaft 246 and have a hemispherical shape.

Rotating hole 249 is formed at the lower end of connecting band 240A. The rotation shaft 246 is inserted through the rotation hole 249. A large number of concave portions 250 are formed on the right side surface of the connecting band portion 240A. A large number of recesses 250 are provided at equal intervals around the rotation hole 249 so as to be fitted with the locking protrusions 247 and 248, and each recess 250 has a hemispherical shape.

A circular leaf spring 251 is inserted through the rotation shaft 246. The leaf spring 251 is provided to urge the connecting band portion 240A toward the temple body 42A by an elastic force. The engagement state between the locking projections 247 and 248 and the many concave portions 250 is maintained by the biasing force by the elastic force.

The fixed body 252 has a cylindrical shape and is provided to attach the connecting band portion 240A to the rotation shaft 246. The fixed body 252 has a support hole 253 into which the distal end portion of the rotation shaft 246 is inserted. The fixed body 252 has a notch 254 at a predetermined position on the inner wall that forms the support hole 253. An elastic spring piece 255 is attached in the vicinity of the tip of the rotation shaft 246. The elastic spring piece 255 can be engaged with the notch 254. The engagement between the elastic spring piece 255 and the notch 254 is held by the elastic force of the elastic spring piece 255 and ensures that the fixed body 252 is attached to the rotation shaft 246 at a predetermined rotation position. In a state where the connecting band portion 240A and the plate spring 251 are inserted through the rotation shaft 246, the right end surface of the fixed body 252 presses the connecting band portion 240A against the temple body 42A via the plate spring 251.

FIG. 7 is a view showing the connecting band portion 240A cut along the line BB shown in FIG. In FIG. 7, the connecting band portion 240A has a conductor 256P and a conductor 256N at the lower end thereof. Both conductors 256P and 256N are formed in a circular arc shape with the center of the rotation hole 249 as the center. The conductor 256P is connected to the conductor 245P, and the conductor 256N is connected to the conductor 245N. FIG. 8 is a cross-sectional view of the fixed body 252 cut along the line CC shown in FIG. 6 and 8, the fixed body 252 has a fixed base 257 inside thereof. The fixed base 257 fixes the pair of sliding contacts 258P and 258N. The sliding contact 258P is in contact with the conductor 256P and is slidable with respect to the conductor 256P. The sliding contact 258N is in contact with the conductor 256N and is slidable with respect to the conductor 256N. Both sliding contacts 258P and 258N are connected to lead wires 259P and 259N, respectively.

As shown in FIG. 2, the connection line 260 includes a bundle of both lead wires 259P and 259N, and connects between the fixed body 252 and the image display unit 100. The connection line 260 is detachably connected to the image display unit 100 by an electrical connection element including a known plug and outlet.

In the present embodiment, the portion where the module case 210 and the arm portions 230A and 230B are connected is an example of the support portion of the present invention. In the present embodiment, the portions where the connecting band portions 240A and 240B and the temple main bodies 40A and 40B are connected are an example of the rotation mounting portion of the present invention. The axis of the rotation shaft 246 of this embodiment is an example of the rotation axis of the present invention. In this embodiment, electric contacts 232P, 232N, lead wires 234P, 234N, movable connecting pieces 242P, 242N, conductors 245P, 245N, conductors 256P, 256N, sliding contacts 258P, 258N and lead wires 259P, 259N Is an example of the connection means of the present invention. In the present embodiment, a combination of arcuate conductors 256P and 256N and sliding contacts 258P and 258N is an example of the switch of the present invention.

<Operation and action>
The operation and action of the present embodiment configured as described above will be described with reference to FIGS.

<Attaching the image display unit>
In the present embodiment, since the image display unit 100 is attached only to the left side of the first frame 10, first, the user does not attach the first frame 10, and in FIG. The left temple part 40A is slightly rotated counterclockwise around the axis of 41A, and the extending member 51A is separated from the armor part 30A. The user inserts the fixture main body 61 into the front end portion of the extending member 51A from the front. The fitting 60 is held by the first frame 10 by this fitting operation.

In order to securely hold the mounting state of the image display unit 100, the user rotates the temple portion 40A clockwise around the axis of the mounting screw 41A in FIG. 3 to thereby extend the extending member 51A and the mounting body. 61 is brought close to the armor portion 30A. In this approached state, the front portion 31 </ b> A of the armor portion 30 </ b> A is located so as to protrude forward of the front end surface of the fixture body 61. The protruding shape of the front portion 31A prevents the fixture body 61 from moving forward on the extending member 51A and falling off. The image display unit 100 is securely held by the extending member 51A only by a simple operation of rotating the temple portion 40A and without requiring any special work such as tightening of a mounting screw.

<First frame mounting operation>
After the image display unit 100 is attached to the first frame 10, the user can move the second case 200 to the forward rotation position where the module case 210 of the second frame 200 approaches the front body 20 of the first frame 10. The frame 200 is rotated. In this forward rotation position, the user connects the connection line 260 extending from the fixed body 252 to the image display unit 100. FIG. 9 shows a state in which the second frame 200 is located at the forward rotation position and the connection line 260 is connected to the image display unit 100.

In the state where the second frame 200 is located at the forward rotation position, the sliding contact 258N is in contact with the conductor 256N, but the sliding contact 258P is in a position not in contact with the conductor 256P. That is, the operating voltage from the batteries BT1 and BT2 is not supplied to the image display unit 100. In this state, the user wears the first frame 10 from the front of the face. FIG. 10 shows a state in which the user wears the first frame 10 in a state where the second frame 200 is located at the forward rotation position. Since the second frame 200 is located at the forward rotation position, the user can easily attach the first frame 10 from the front of the face without being obstructed by the second frame 200. it can.

<Adjustment operation of the rotation position of the second frame>
As shown in FIG. 10, when the second frame 200 is located in front of the user's face and at a position close to both the left and right eyes, the user is obstructed in the left-right direction and the obliquely upper visual field. . Further, the gravitational force of the batteries BT1 and BT2 built in the module case 210 is concentrated on the front side of the user's head, such as the user's nose and part of the face. You may not be able to see the image. Therefore, the user can avoid the gravity of the entire second frame 200 from being concentrated on a part of the body by changing the rotation position of the second frame 200 to an arbitrary position.

The user rotates the second frame 200 clockwise from the forward rotation position shown in FIG. When the user rotates the front horizontal position to a position of about 45 degrees, the sliding contact 258N comes into contact with the conductor 256N, and the sliding contact 258P also comes into contact with the conductor 256P. The operating voltages are supplied to the image display unit 100 from the batteries BT1 and BT2 by the sliding contacts 258P and 258N coming into contact with the conductors 256P and 256N. The user can start supplying the operating voltage to the image display unit 100 only by rotating the second frame 200 with the first frame 10 mounted.

The user rotates the second frame 200 while wearing the first frame 10 at an arbitrary position such as a rotation position directly above the head shown in FIG. 1 according to the ease of use. Can be moved. In some cases, the user can rotate the second frame 200 to the backward rotation position of the head. The rotational position of the second frame 200 is held by the fitting of the locking protrusions 247 and 248 with the numerous recesses 250. FIG. 11 shows a state in which the second frame 200 is rotated to the rearward rotation position in a state where the user is not wearing it. In the present embodiment, as shown in FIG. 10, the forward rotation position where the second frame 200 is rotated in a state where the module case 210 and the like are positioned close to both eyes of the user is the present invention. It is an example of a forward rotation position. In the present embodiment, as shown in FIG. 11, the backward rotation position where the second frame 200 is rotated in a state where the module case 210 or the like is located behind the user's head is the backward rotation of the present invention. It is an example of a moving position.

[Second Embodiment]
A second embodiment of the present invention will be described with reference to FIGS. The second embodiment is different from the first embodiment in the configuration in which the second frame is detachably attached to the first frame. Hereinafter, only the configuration different from that of the first embodiment will be described, and the same components as those of the first embodiment are denoted by the same reference numerals.

FIG. 12 shows a lower end portion of the connecting band portion 240A-1 in the image display device 1 of the second embodiment. FIG. 13 is a partial cross-sectional view taken along the line DD shown in FIG. The lower end portion of the connecting band portion 240A-1 is formed in a bifurcated shape and has a pair of leg portions 300 and 301. As shown in FIG. 13, the leg part 300 has the rotation hole part 302 and the opening part 303 open | released below. Similarly, the leg 301 also has a rotation hole 304 and an opening 305 that opens downward. As in the case of the connecting band portion 240A of the first embodiment shown in FIG. 7, the leg portion 300 has an arc-shaped conductive centered on the center of the rotation hole portion 302 on the left side surface of the leg portion 300 shown in FIG. It has a body 256P, 256N. Both conductors 256P and 256N are connected to conductors 245P and 245N connected to batteries BT1 and BT2, respectively.

12, the leg portion 301 has a large number of recesses 250 around the rotation hole portion 304 on the right side surface of the leg portion 301 in the same manner as the connection band portion 240A of the first embodiment shown in FIG.

FIG. 14 is an enlarged right side view showing the rear end portion of the temple body 42A-1. FIG. 15 is a cross-sectional view taken along the line EE shown in FIG. In FIG. 14, a pair of conductors 306P and 306N are embedded in the temple body 42A-1. In the second embodiment, the temple body 42A-1 is molded from a non-conductive synthetic resin. Both conductors 306P and 306N are disposed up to the extending member 51A located at the front end portion of the temple body 42A-1. Both the conductors 306P and 306N and the image display unit 100 are connected by an electrical connection element including a known plug and outlet. Although not shown, the electrical connection element is provided in a fixture such as the fixture 60 of the first embodiment shown in FIG. When the fixture is fitted to the extending member 51A, both the conductors 306P and 306N and the image display unit 100 are connected.

The temple body 42A-1 has a pair of sliding contacts 307P and 307N. Both sliding contacts 307P and 307N are connected to conductors 306P and 306N, respectively. In FIG. 15, both sliding contacts 307P and 307N protrude from the right side surface of the temple body 42A-1. Both sliding contacts 307P and 307N can make contact with arcuate conductors 256P and 256N of the leg 300, respectively. Similar to the temple main body 42A of the first embodiment shown in FIG. 6, the locking projection 247 is provided to protrude from the left side surface of the temple main body 42A-1. The locking protrusions 247 can be fitted with the numerous recesses 250 of the leg 301.

A pair of rotating shaft portions 308 and 309 are provided so as to protrude from both the left and right side surfaces of the temple main body 42A-1. Both rotation shaft portions 308 and 309 can be fitted to both rotation hole portions 302 and 304 of both leg portions 300 and 301, respectively. Both rotating shaft portions 308 and 309 have a diameter larger than the narrowest opening width of the opening portions 303 and 305 of both leg portions 300 and 301. When both the rotating shaft portions 308 and 309 are fitted to the rotating hole portions 302 and 304, the lower end portions of both the leg portions 300 and 301 are elastically deformed, and the openings 303 and 305 are expanded. Due to the elastic deformation of the openings 303 and 305, the connecting band 240A-1 can be attached to and detached from the temple main body 42A-1. Further, the connecting band portion 240A-1 is connected to the temple body 42A-1 so as to be rotatable about both the rotating shaft portions 308 and 309. In the second embodiment, since the second frame 200 can be attached to and detached from the first frame 10, the electrical connection between the power supply circuit unit 212 and the conductors 245P and 245N in the module case 210 is performed. Means can be easily maintained and inspected.

The axes of the rotating shaft portions 308 and 309 in the second embodiment are an example of the rotating axis of the present invention. The combination of the pair of leg portions 300 and 301, the rotation hole portions 302 and 304, the opening portions 303 and 305, and the pair of rotation shaft portions 308 and 309 in the second embodiment is an example of the connection mechanism of the present invention. .

[Modification]
The present invention is not limited to the present embodiment, and various modifications can be made without departing from the spirit of the present invention.

(1) Although this embodiment is a monocular image display device in which the image display unit 100 is attached to one of the left and right sides of the frame 10, a binocular type in which two image display units are attached to the left and right sides of the frame, respectively. It may be an image display device. In addition, a single-eye image display device in which one image display unit 100 is selectively attached to either of the left and right sides may be used.

(2) In the present embodiment, the batteries BT1 and BT2 are exchangeably stored in the module case 210, but a device having a power generation function may be provided in the module case instead of the battery. For example, as shown in FIG. 12, the photoelectric conversion panel 400 is provided on the outer peripheral surface of the module case 210-1, and the electric power generated by the photoelectric conversion panel 400 using the photovoltaic effect in the module case 210-1. The capacitor 401 including a capacitor or the like for storing the battery may be built in. As another example of a device having a power generation function, a vibration generator that generates electric power using an electromagnetic induction effect may be incorporated in the module case. In the modification shown in FIG. 12, since no battery is present, it is considered that a cover is unnecessary. However, the cover 220-1 provided with the decorative pattern is in accordance with the user's preference, like the cover 220 of the present embodiment. The module case 210-1 may be replaceably attached. In the modification shown in FIG. 12, the photoelectric conversion panel 400 and the capacitor 401 are examples of the photoelectric conversion panel and the capacitor of the present invention.

(3) In the present embodiment, the pair of temple main bodies 42A and 42B are rotatably attached to the pair of armor portions 30A and 30B fixed to the front main body 20, but instead of this, the temple main bodies May be directly fixed to the left and right ends of the front body. In this configuration, a fixture for attaching an image display unit such as the fixture 60 may be fixed to the temple body, and the image display unit may be detachably attached to the fixture.

(4) In the first embodiment, the fixed body 252 and the image display unit 100 are connected to the first frame 10 via a separate connection line 260. The conductor for electrically connecting the image display unit and the image display unit may be embedded in the temple body.

(5) In the present embodiment, the second frame 200 has a configuration in which the upper end portion of the connection band portion 240A expands and contracts according to the length inserted into the internal space of the arm portion 230A. Instead, the connecting band portion itself may be elastically deformed, and a conductor corresponding to the conductors 245P and 245N may expand and contract in the form of a winding cord.

(6) In the present embodiment, the module case 210 includes only the power supply circuit unit 212 for supplying the operating voltage. Instead, the module case controls the display control of the image display unit. The circuit part may also be built in. In this configuration, the arm unit and the connecting band unit include a conductor for supplying an image control signal, an optical fiber for supplying image light, and the like in addition to a conductor for supplying an operating voltage. The light supply means is also arranged.

DESCRIPTION OF SYMBOLS 1 Retina scanning display 10 1st frame 20 Front main body 30A, 30B Yoroi part 40A, 40B Temple part 42A, 42B, 42A-1 Temple main body 50 Holding mechanism 51A, 51B Extension member 100 Image display unit 200 2nd frame 210 Module case 220 Cover 230A, 230B Arm part 240A, 240B, 240A-1 Connection band part 211 Storage chamber 212 Power supply circuit part 232P, 232N Electrical contact 234P, 234N, 259P, 259N Lead wire 242P, 242N Movable connection piece 245P, 245N 256P, 256N Conductor 246 Rotating shaft 258P, 258N Sliding contact BT1, BT2 Battery 300, 301 Leg 302, 304 Rotating hole 303, 305 Opening 308, 309 rotation shaft 400 photoelectric conversion panel 401 capacitor

Claims (9)

1. A front part extending in the left-right direction in front of the user's eyes and attached to the user's nose, and attached to the left and right ends of the front part and attached to the user's ears A first frame including a pair of temple portions extending rearward from
   An image display unit that includes an optical system that generates image light to display an image to a user and is attached to the first frame;
   A second frame attached to the pair of temple parts so as to be rotatable around a rotation axis extending in a direction along a left-right direction in which the front part extends when a user wears the first frame;
   A circuit module including a power supply circuit unit for supplying power to the image display unit and supported by the second frame;
   An eyeglass-type image display device comprising connection means for electrically connecting the circuit module and the image display unit.
2. The second frame has a forward rotation position rotated forward of the head of the user wearing the first frame, and a rear rotation position rotated rearward of the user's head. The eyeglass-type image display device according to claim 1, wherein the eyeglass-type image display device is attached to the pair of temple portions so as to be rotatable.
3. 2. The eyeglass-type image display device according to claim 1, wherein the rotation axis of the second frame is located close to a portion of the pair of temple portions to be worn on a user's ear.
4. The power supply circuit unit is configured to be connectable to a battery that stores power supplied to the image display unit,
   The eyeglass-type image display device according to claim 1, wherein the circuit module includes a storage chamber for storing the battery in a replaceable manner.
5. 2. The eyeglass-type image display device according to claim 1, wherein the circuit module includes a module case supported by the second frame and a cover that is replaceably attached to the module case.
6. The second frame is configured to be extendable and contractable between a support portion that supports both left and right ends of the circuit module and a rotation attachment portion that is rotatably attached to the pair of temple portions. Item 2. An eyeglass-type image display device according to Item 1.
7. The spectacles type according to claim 1, further comprising a coupling mechanism provided between the second frame and the pair of temple portions so that the second frame is detachably attached to the pair of temple portions. Image display device.
8. Supplying power from the power supply circuit unit to the image display unit, or comprising a switch for performing an opening / closing operation to cut off the supply,
   2. The eyeglass-type image display device according to claim 1, wherein the switch is configured to open and close in accordance with a rotation angle of the second frame with respect to the pair of temple portions.
9. 2. The eyeglass-type image display device according to claim 1, wherein the circuit module includes a photoelectric conversion panel that converts irradiated light into electric power, and a power storage unit that stores electric power generated by the photoelectric conversion panel.

Images